I dont really know how to decribe this but...
I have this sensor that has no return wire. It is grounded to the chassis it is bolted to. The way it is supposed to work is 5V goes into it, depending on what is going on that 5V hits different resistors and then a processor that is sending the signal reads the amount of voltage draw on the wire...
What I want to do is replace that sensor with a 'simulated' one, using a pic and some other stuff... but i want it to operate in the same way. (Its kinda complicated why i need to do this, but alas it does need to be done.
How can I accept a 5V signal with my pic, but only draw specific amounts? Like I want this other processor to see that its output pin has 2.5V being drawn from the 5V its allowing out.
Can I do this with the -Output of a DAC ???
I have this sensor that has no return wire. It is grounded to the chassis it is bolted to. The way it is supposed to work is 5V goes into it, depending on what is going on that 5V hits different resistors and then a processor that is sending the signal reads the amount of voltage draw on the wire...
What I want to do is replace that sensor with a 'simulated' one, using a pic and some other stuff... but i want it to operate in the same way. (Its kinda complicated why i need to do this, but alas it does need to be done.
How can I accept a 5V signal with my pic, but only draw specific amounts? Like I want this other processor to see that its output pin has 2.5V being drawn from the 5V its allowing out.
Can I do this with the -Output of a DAC ???